Home / 1,098,961.20-1,648,636.20-389,401.20

Finding the Fourth Proportional to 1,098,961.20, 1,648,636.20 and 389,401.20

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Solution

The fourth proportional to 1,098,961.20, 1,648,636.20 and 389,401.20 is: 584,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,961.20 : 1,648,636.20 = 389,401.20 : x
  2. Step 2: Convert to fraction form
    1,098,961.20/1,648,636.20 = 389,401.20/x
  3. Step 3: Cross multiply
    1,098,961.20x = 1,648,636.20 × 389,401.20
  4. Step 4: Simplify right side
    1,098,961.20x = 641,980,914,643.44
  5. Step 5: Solve for x
    x = 641,980,914,643.44/1,098,961.20
  6. Step 6: Final answer
    x = 584,170.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.